remove the three small round plastic covers on mirror surround,use a fine screwdriver,behind there are the three bolts to remove,used to be 8mm bolts but some now have shear bolts,if they are shear bolts and you are renewing the mirror assy then you can break away the surround to access the bolts and get them moving with a good cold chisel,think you get new bolts with the new mirror,unclip the repeater lamp and refit in reverse.
cdc, July 2011